Paul Fights On, Gingrich Wanes In GOP Primary Race

4/21/2012 1:21 PM ET

Presidential hopefuls Ron Paul and Newt Gingrich continue their fight against presumptive nominee Mitt Romney, who leads them in delegates and funding by a wide margin.

Texas Congressman Ron Paul's campaign remained steady Friday, announcing he raised $10.4 million in the first quarter and $2.6 million in March. With no debt, Paul aides said he had enough funds to make it to the GOP convention in August.

Former House Speaker Gingrich, however, canceled his upcoming appearances in North Carolina after announcing Friday his campaign is $4.3 million in debt. Romney's March fundraising numbers topped $12.7 million, the highest monthly funds raised yet for his campaign.

Ron Paul will continue his countrywide tour Sunday, appearing in Philadelphia before heading on to his home state of Texas for a townhall in El Paso. Gingrich, who is campaigning in Delaware Saturday, had no events scheduled going forward.